downgrading 2.0 baseband to 1.1.4

if you were andenturous as me and decided the install the iphone firmware 2.0 beta8 or 2.0 final, and were not able to use your iphone because the ended up with the 04.05.04_G baseband, then all you have to do is use KiPhone (04.05.04) to downgrade.